[INFO] fetching crate char-coal 0.2.4...
[INFO] checking char-coal-0.2.4 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate char-coal 0.2.4 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate char-coal 0.2.4
[INFO] finished tweaking crates.io crate char-coal 0.2.4
[INFO] tweaked toml for crates.io crate char-coal 0.2.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate char-coal 0.2.4 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate char-coal 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_macros v0.8.0
[INFO] [stderr]   Downloaded thin-slice v0.1.1
[INFO] [stderr]   Downloaded scraper v0.14.0
[INFO] [stderr]   Downloaded selectors v0.22.0
[INFO] [stderr]   Downloaded servo_arc v0.1.1
[INFO] [stderr]   Downloaded symphonia-bundle-flac v0.5.1
[INFO] [stderr]   Downloaded symphonia-format-ogg v0.5.1
[INFO] [stderr]   Downloaded httparse v1.7.1
[INFO] [stderr]   Downloaded tracing-core v0.1.27
[INFO] [stderr]   Downloaded security-framework v2.6.1
[INFO] [stderr]   Downloaded cpal v0.14.1
[INFO] [stderr]   Downloaded symphonia-core v0.5.1
[INFO] [stderr]   Downloaded reqwest v0.11.11
[INFO] [stderr]   Downloaded h2 v0.3.13
[INFO] [stderr]   Downloaded hyper v0.14.19
[INFO] [stderr]   Downloaded clap v4.0.22
[INFO] [stderr]   Downloaded rodio v0.16.0
[INFO] [stderr]   Downloaded openssl v0.10.40
[INFO] [stderr]   Downloaded whatlang v0.16.0
[INFO] [stderr]   Downloaded nix v0.25.0
[INFO] [stderr]   Downloaded ndk-sys v0.4.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.74
[INFO] [stderr]   Downloaded symphonia-bundle-mp3 v0.5.1
[INFO] [stderr]   Downloaded symphonia-codec-vorbis v0.5.1
[INFO] [stderr]   Downloaded symphonia-format-mkv v0.5.1
[INFO] [stderr]   Downloaded symphonia-format-wav v0.5.1
[INFO] [stderr]   Downloaded symphonia-metadata v0.5.1
[INFO] [stderr]   Downloaded ego-tree v0.6.2
[INFO] [stderr]   Downloaded dtoa-short v0.3.3
[INFO] [stderr]   Downloaded symphonia v0.5.1
[INFO] [stderr]   Downloaded string_cache v0.8.4
[INFO] [stderr]   Downloaded symphonia-codec-pcm v0.5.1
[INFO] [stderr]   Downloaded symphonia-utils-xiph v0.5.1
[INFO] [stderr]   Downloaded cssparser-macros v0.6.0
[INFO] [stderr]   Downloaded cssparser v0.27.2
[INFO] [stderr]   Downloaded semver v1.0.10
[INFO] [stderr]   Downloaded shellexpand v3.0.0
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.37.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.37.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.37.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.37.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.37.0
[INFO] [stderr]   Downloaded windows v0.37.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e252ce010d54b4cd0777f1adfcb01e6b57b6cd182467b1026f4eae18f95aee46
[INFO] running `Command { std: "docker" "start" "-a" "e252ce010d54b4cd0777f1adfcb01e6b57b6cd182467b1026f4eae18f95aee46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e252ce010d54b4cd0777f1adfcb01e6b57b6cd182467b1026f4eae18f95aee46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e252ce010d54b4cd0777f1adfcb01e6b57b6cd182467b1026f4eae18f95aee46", kill_on_drop: false }`
[INFO] [stdout] e252ce010d54b4cd0777f1adfcb01e6b57b6cd182467b1026f4eae18f95aee46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2493a602e6e7d400e4bae6909fabd9ccd2d3218b048305f5192e44f5a0d0ff92
[INFO] running `Command { std: "docker" "start" "-a" "2493a602e6e7d400e4bae6909fabd9ccd2d3218b048305f5192e44f5a0d0ff92", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]     Checking once_cell v1.12.0
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2493a602e6e7d400e4bae6909fabd9ccd2d3218b048305f5192e44f5a0d0ff92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2493a602e6e7d400e4bae6909fabd9ccd2d3218b048305f5192e44f5a0d0ff92", kill_on_drop: false }`
[INFO] [stdout] 2493a602e6e7d400e4bae6909fabd9ccd2d3218b048305f5192e44f5a0d0ff92